# DubFilter vs SHCzen

The clearest difference is review sentiment: DubFilter at 73% against SHCzen's 0%. DubFilter also leads on price (Free vs $0.99) and rating (4.7 vs 1.0). SHCzen's advantage is in-app purchases (none vs 1) and update cadence (every 11 days vs every 6 months). On ads and device support there is nothing between them.

DubFilter is free to download; SHCzen costs $0.99 up front. DubFilter sells 1 one-off in-app purchase. SHCzen asks for nothing beyond the download.

DubFilter holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: DubFilter has 71 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 73% of DubFilter's written reviews are positive against 0% of SHCzen's.

DubFilter ships an update every 6 months, SHCzen every 11 days. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | DubFilter | SHCzen |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.7 (71 ratings)](https://appshunter.io/ios/app/dubfilter/id979648058/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/shczen/id1029029484/reviews) |
| Number of ratings | **71** | 2 |
| Positive reviews | **73.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 11 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 12 MB | 3 MB |
| Requires iOS | 17.0 | **9.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Amazing Noises](https://appshunter.io/developer/903336421) | [若伦 翁](https://appshunter.io/developer/1029029483) |

## What reviewers say

### DubFilter

[App page](https://appshunter.io/ios/app/dubfilter/id979648058)

This app provides a powerful dual filter with resonance and an exclusive overlap parameter. It also features a redesigned stereo sample player with LFO and scrubbing, along with extensive MIDI and file management capabilities.

**Highlights:** Dual low-pass/high-pass filter, Resonance and Overlap parameter, Stereo sample player with LFO, Scrubbing capabilities, Audiobus and Inter-App Audio support, MIDI control and file management, Preset morphing pad

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Audio Unit Plugin Support | $1.99 | one-time |


### SHCzen

[App page](https://appshunter.io/ios/app/shczen/id1029029484)

Experience a unique, gesture-based meditation journey with this app. Manipulate soothing sounds and ambient music through your movements to enhance focus, relaxation, and inner calm in a ZEN environment.

**Highlights:** Gesture-based sound manipulation, Personalized meditation experience, ZEN-inspired soundscapes, Enhances focus and relaxation, Minimalistic design

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DubFilter free?

DubFilter is free to download, with in-app purchases available.

### Is SHCzen free?

SHCzen costs $0.99, with no in-app purchases.

### Which has better reviews, DubFilter or SHCzen?

DubFilter is rated higher. DubFilter averages 4.7 out of 5 from 71 ratings, while SHCzen averages 1.0 from 2 ratings.

### Do DubFilter or SHCzen have ads?

Neither DubFilter nor SHCzen shows ads.

### Which is updated more often, DubFilter or SHCzen?

DubFilter ships an update every 6 months, and SHCzen every 11 days. Most recently, DubFilter was updated on October 7, 2026 and SHCzen on October 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*